Shuttle box for looms



Sept. 14, 1937. w. H. BAHAN 2,093,227

SHUTTLE BOX FOR LOOMS Filed July 20, 1936 2 Sheets-Sheet l w, @M/FZJ,

WILL/HM BAHAN Sept. 14, 1937.. w H BAHAN 2,093,227

SHUTTLE BOX FOR LOOMS Filed July 20, 1936 2 Sheets-Sheet 2 Ivy-.4 51 45 40} 237 36 WILLIAM H. BAHAN gvwem/to'n Patented Sept. 14, 1937 UNITED STATES PATENT OFFICE 8 Claims.

This invention relates to a shuttle box for looms and more especially to a shuttle box having means operable by the inertia, of the travelling shuttle for applying a gradually increasing pressure to the sides of the shuttle to arrest the same.

The shuttle box is also provided with means whereby the inertia of the shuttle is not transmitted suddenly to the means for applying pressure to the side of the shuttle but, instead, the energy stored up in the travelling shuttle is gradually applied to the pressure applying means so that the shuttle is arrested at the proper position. Therefore, the shuttle has no tendency to rebound on account of the sudden reversed movement of the pressure applying means, which might occur were not the pressure applying means operated by a gradually increasing impact.

It is therefore, an object of this invention to provide a shuttle box having an eccentric, provided with a movable lining member secured to the eccentric and extending along on the inside of one side of the shuttle box, and having means engageable by the picker stick for moving the movable lining and the eccentric for applying a gradually increasing pressure to the side of the shuttle as the incoming shuttle moves the picker stick to boxing position.

It is another object of this invention to provide a movable lining member for a shuttle box having one end mounted on an eccentric extending through one side of the shuttle box, and having the other end secured to a movable member which is provided with spring means for engaging the picker stick so that the incoming shuttle will move the picker stick, which in turn,

will move the movable member to move the movable lining and the eccentric to apply a gradually increasing pressure to the side of the shuttle to arrest the same.

It is a further object of this invention to provide means for arresting a shuttle in a shuttle box which is operated by the stored up energy in the moving shuttle. This stored up energy is gradually transmitted to a movable lining r which actuates an eccentric member to grip and box the shuttle and hold it in boxed position and thus preventing any rebound of the shuttle and the picker stick.

It is still another object of this invention to provide a shuttle box having a box front secured in an adjustable manner to the lay of the loom. This adjustability is made possible by providing eccentric washers which are penetrated by the bolts securing the box front to the lay of the loom. When the bolts are tightened the eccentric washer, which has its periphery roughened, will be pressed against the side of the box front to act as a lock washer and prevent the vibration of the loom from loosening the bolts holding the box front in position.

Some of the objects of the invention having been stated, other objects will appear as the description proceeds, when taken in connection with the accompanying drawings, in which:

Figure 1 is an elevation of one side of a loom showing one end of the lay and associated parts with my invention applied thereto;

Figure 2 is an isometric view of the pivoted shock receiving and eccentric operating member associated with my invention;

Figure 3 is an end view of the lower portion of Figure 1 looking from the direction indicated by the arrow 33 in Figure 1;

Figure 4 is a top plan view of Figure 1 showing a small portion thereof in section;

Figure 5 is a reverse View of Figure 1;

Figure 6 is a sectional plan View taken along line 66 in Figure 5.

Referring more particularlyto the drawings, I

being connected to the lay I3 of the loom. The

loom is provided with a dagger rod 14 mounted for oscillatory movement in bearing cuff I5. A conventional dagger Ma is secured on the rod 14. This dagger rod M has secured thereto a lever l6 by means of nuts H, which lever l6 has an adjustable bolt l8 mounted in the free end thereof having a portion l9 for engaging the pivoted binder 20 which has a leather lining 2| on its face which engages the shuttle, said binder being pivoted as at 22.

The lay of the loom is provided with a lay cap 25 secured thereto by any suitable means. The

cap has. a box front 26 secured on one side thereof and having a leather lining 21. The box front is secured to the lay cap by any suitable means such as by having bolts 28 and 29 penetrating slots in the lower outstanding flange of the box front and being threadably secured in the lay cap. Loosely mounted around bolts 28 and 29 are eccentric washers 36 and 3| which have their periphery serrated so that as the bolts 28 and 29 are tightened the serrated edges of the washers 30 and 3! will engage the outer sidewall of the box front to thereby lock the bolts in position and prevent the vibration of the loom from causing a loosening of the box front on the lay cap.

On the other side of the lay cap there is pro- 7 'portion beneath the shuttle where the bobbinis vided a member 35 to which the binder is pivotally mounted which binder has been previously described. This member extends in parallel relation to lay cap 25, thereby forming a slot 36 for the reception of the binder and also for the receptionlof an eccentric member 31 which is pivoted in the outstanding upper and lower lugs 38 and 39 by means of bolt 40 penetrating the outstanding portions 38 and 39 and serving as a pivot point for the eccentric member 31.

The lay cap is provided with a slot 4|, which, in the present instance, is shown widened at that expelled, as this end of the loom is usually the battery end and therefore, the slots 4| must be wide enough to allow ejected bobbins to pass downwardly through slot 4| when a filling change is effected. Theouter end of slot 4|, indicated by 4 la, is somewhat narrower and in which a' picker stick 42 is adapted to havereciprocatory movement.- The lay cap 2| is also cut away as at 43 to provide a space for oscillation of a member 44. The member 44 haslsecured thereto a movable shuttle 'boxlining 45, which lining passes over the eccentric member 31 and issecured thereto as at 37a. The otherend of the movable lining 45 issecured to tension spring 46 which spring is also secured to an outwardly and upwardly and inwardly turned end 41, of a bracket member 48 which is securedto the lay cap 25 to close the slot 43. Therefore, the member 48 serves the double .purpose'of closing slot 43 and serving also as a spring perch for the other end of tension spring 46. The purpose of this tension spring is to normally hold the parts in shuttle receiving position shown in the drawings.

' The outer'end ,of slot 43 is provided with a leather strap 49 for serving as a cushion should secured to a U-s ha'ped member 55 by any suitable means such as bolts 56. This lJ-shaped member 55has leg 51 to which the member 44 is secured It has a shorter leg member 58 to which is welded the upper end of a piece of strap iron The inner surface of the back portion 63 of memberl55 has a leather cushion 64 secured therein by a couple of bolts 65 which penetrate the leather member 64, the portion 63 of member 55 and also the upper end of a leaf'spring 66.

xThe leaf spring 66 projects downwardly and in- Wardly and has its lower end positioned so as to engage a wear plate'68 disposed on the rear surface of picker stick 42. r V i I The picker stick 42, at its lower end, is mounted in the usual manner by being secured to a picker stick shoe 10 to which is secured a strap H which is secured to a spring take-up 72 secured'on' foot 14 and on which the shoe 16 0S- cillates. The foot 14 is provided with a downwardly projecting portion 15 on the outer edge thereof which is provided for mounting the lower end of strap iron member 59. This lug 15' has a bolt 16 penetrating the same. The lower endof strap iron member59 has abearing member 11' secured therein'by any suitable means such as a press fit and the bearing member 11 isrockably confined on bolt 16 by any suitable means such as a cotter key 13. This bearing member ll provides a wide bearing surface for the lower end of strap iron member 59 and prevents undue wear from affecting the operation of the member 59 in its oscillatory movement.

The picker stick is also provided with a conventional lug strap secured to another member 82 which is connected to a forked lever 83, secured 1 to a shaft, not shown, for imparting movement to the picker stick for picking the shuttle and projecting it to the other end of the lay' of the V loom.

It is seen, that with the'parts in the position shown in Figures 1, 4 and 5, when an incoming shuttle engages the binder surface 2|, thiswill partially check the shuttle and it will move until the nose of the shuttle engages the picker 85 on the upper end of picker stick 42. The upper end of picker stick 42 will be moved to the right offered by leaf spring 66 but will also have engaged the leather buffer 64 and the picker stick will be moved to the extreme, right end of slot 4|a in Figure 4. The member 44 along" with its member 59and associated parts will be moved further to the right in slot 43landthe utmost and finalpressure will be exerted by eccentric 31 on the side of the shuttle. This will causela gradually increasing pressure to be exerted to the side of the shuttle so thatwhen the shuttle and the picker stick and the member 44 all come to rest, in extreme right hand position in v.

Figure 1, there will be no rebound to'cause the shuttle to move backwardly inthe box or to the left in Figure 4, as might happen if this spring 66 were not provided for receiving the inertia impact of the shuttle and gradually transmitting this impact to the movable lining 45 and the eccentric 31. It is of course evident that when the picking occurs and a picker stickis moved to expel the shuttle out of the box' into the other end of the lay of the loom, the picker stick a i and member 44 will assume the position shown in Figure 4 ready for the return of the shuttle to this end of the loom.

The other end of the lay of the loom, though not shown, will .be equipped with identical means for receiving the shuttle and; arresting the same 'as it is received into the other end of the lay of the loom. H g l v It is to be understood that spring :66 could be mounted on the picker'stick instead of beingmounted on member 55, the main object being to provide a resilient engagement between the picker stick and the means for moving the ec- In the drawings and specification there has been set forth a preferred embodiment of the invention, and although specific terms are em-,

ployed, they are used in a generic and descriptive sense only, and not for purposes of limitation, the scope of the'invention being set forth a back binder and a picker stick equipped wit-1 a picker on its upper end and also having a shoe on the lower end of the picker stick mounted for oscillation on a foot, said binder having a slot in its sidewalls, an eccentric member mounted in said slot, a member having its lower end pivotally secured to said foot and having an intermediate portion provided with resilient means engageable by the picker stick when the picker stick is moved by the impact of an incoming shuttle, a lining member secured to said eccentric member and extending rearwardly in the shuttle box and having its rear end secured to the upper end of said member pivotally secured to said foot whereby an incoming shuttle will move the picker stick into engagement with said resilient means on said pivoted member to move the said lining and said eccentric to apply pressure to the side of the shuttle to arrest the same.

2. In a loom having a shuttle box provided with a box front and a binder and a picker stick equipped with a picker, said binder having a slot in its sidewall, a rotatable member eccentrically mounted in said slot and having a flexible lining member secured thereto and extending rearwardly on the inside of the binder and forming a movable lining for the binder, movable means engageable by the picker stick when the same is moved by the impact of an incoming shuttle, the rear end of said movable lining being attached to said movable means whereby the picker stick when moved by an incoming shuttle will move the movable lining and said eccentric and apply pressure to the side of the shuttle to stop the same.

3. In a loom having a shuttle box provided with a box front and a binder and a picker stick equipped with a picker, said binder having a slot in its sidewall, a rotatable member eccentrically mounted in said slot and having a lining member secured thereto and extending rearwardly on the inside of the binder and forming a movable lining for the binder, movable means engageable by the picker stick when the same is moved by the impact of an incoming shuttle, the rear end of said movable lining being attached to said movable means whereby the picker stick when moved by an incoming shuttle will move the movable lining and said eccentric and apply pressure to the side of the shuttle to stop the same, and a resilient member disposed between the picker stick and said movable member for absorbing part of the shock of the impact of the incoming shuttle and preventing reverse movement of said eccentric member.

4. In a loom having a shuttle box provided with a back binder and a picker stick provided with a picker, said binder having a slot therein, a member eccentrically mounted for oscillation in said slot, a movable flexible lining for the binder mounted on said eccentric member and extending rearwardly along the inside wall of the binder, movable means separated from the picker stick secured to the rearward end of said movable lining, said movable means being engageable by the picker stick upon boxing a shuttle to move the movable lining and said eccentric to apply pressure to one side of the shuttle to arrest the same.

5. Means for checking the travel of a shuttle in a shuttle box for looms comprising an eccentrically mounted member for engaging the side of a shuttle when it travels in the box and exerting pressure thereon, a movable lining for the shuttlebox mounted on said eccentrically mounted member, a swingable member to which the other end. of the movable lining is secured and having means for engaging the picker stick whereby the swingable member is moved and the eccentrically mounted member is moved along with said lining in the same direction as the shuttle to apply pressure on the shuttle to arrest the same.

6. In a loom having a shuttle box provided with a binder plate and a picker stick provided with a picker on its upper end, said binder plate having a transversely disposed slot therein, a member eccentrically mounted for rotation in said slot, 2. lining secured to said eccentrically mounted member and extending rearwardly in the shuttle box to provide a lining for the rear portion of the binder plate, movable means secured to the rear end of said lining and being disposed in the path of travel of the picker stick and resilient means disposed between the movable member and the picker stick whereby the picker stick will impart gradually accelerated movement to the movable member to move the lining and the eccentric in the same direction as the shuttle to arrest the shuttle and prevent any rebound in the eccentric member.

7. In a loom having a shuttle box provided with a back binder plate and a picker stick provided with a picker, a member eccentrically mounted in said binder plate, a flexible member secured on said member and extending rearwardly along the inner surface of the binder plate, a movable member engageable and movable by the picker stick when the picker stick is moved by an incoming shuttle, the rear end of said flexible member being secured to said movable member, resilient means disposed between the picker stick and said movable member whereby movement of the picker stick will move said flexible member and the eccentrically mounted member in the same direction as the shuttle to exert pressure on the shuttle to stop the same.

8. In a loom having a shuttle box equipped with a picker stick and a back binder plate provided with a slot, an eccentrically mounted member disposed in said slot and having a lining member secured thereover and extending rearwardly inside of the binder plate to form a movable lining for the binder plate, a movable member attached to the rear end of said lining, resilient means disposed between the movable member and the picker stick whereby the picker stick will move the lining and the eccentrically mounted member at first engagement between the picker stick and the movable member more slowly than upon further travel of the picker stick and thus exerting pressure on the shuttle to arrest the same and at the same time preventing any reverse movement in the lining and the eccentrically mounted member when the shuttle has been boxed WILLIAM H. BAI-IAN. 

